One more thing, A few years ago I was testing a Large AC motor 6000 Hp. I had it apart and in a rewind shop. The reccomended Hi pot voltage was twice the voltage plus a 1000...I hipotted the motor to 10k volts and got distracted and went to lunch. Needless to say when I did discharge it packed quite a punch. Meggers are an excellent tool and just need to be used properly,and discharged after to ground after.
